Flexible floor mat incorporating LED lighting

ABSTRACT

An up-lighting floor mat includes floor matting that defines an upwardly-facing surface and an opposed downwardly-facing surface when supported atop an upwardly-facing support surface, and that is formed from a first flexible material that enables the up-lighting floor mat to be rolled up for transport or storage; and a first elongate up-lighting assembly positioned within a first elongate slot defined through the floor matting to emit light upwardly from the first elongate slot, wherein at least one elongate edge defined by the first up-lighting assembly is bonded to at least one edge of the floor matting that defines the first elongate slot.

REFERENCE TO PROVISIONAL APPLICATION

This Utility application claims the benefit of the filing date ofProvisional Application Ser. No. 62/497,863 filed Dec. 6, 2016 by JohnJoseph Girard, the disclosure of which is incorporated herein byreference in its entirety. This Utility application is also acontinuation-in-part of Design patent application Ser. No. 29/628,227filed Dec. 3, 2017, herewith by John Joseph Girard and Claus MunchLendal, and entitled RECHARGEABLE UP-LIGHTING FLOOR MAT, the disclosureof which is also incorporated herein by reference in its entirety.

BACKGROUND

The present invention relates to the field of safety equipment for usein work environments that may present safety concerns related at leastto lighting and/or hard floor surfaces. More specifically, the presentinvention relates to equipment and methods to prevent accidents and/orreduce fatigue issues associated with objects that may be suspendedoverhead, objects that may extend outwardly from walls, and/or objectsthat may be positioned about a walking surface.

In various utility room, workshop, maintenance facility and/or factoryfloor environments, there is often a need to position equipment and/ormaterials at various locations relative to walking areas that can createa variety of hazards and/or conditions for inducing fatigue. By way ofexample, where automobiles and/or parts of automobiles need to besuspended overhead to enable manufacturing and/or repairs thereof, risksof head impacts may be created. In such situations, it is usually deemedhighly desirable to provide sufficient lighting as to allow suchsuspended objects to be seen clearly, and thereby avoided. However, thesuspension of such objects overhead often blocks out typical overheadlighting, and it has become a commonplace practice to compensate forsuch reduced lighting by placing lighting devices at various locationson walking surfaces underneath such suspended objects. Unfortunately,this commonplace practice often mitigates one hazard by creating anotherin which personnel, who keep their gaze upward to watch for overheadhazards, may be caused to trip over such lighting devices and/or thepower cords therefor that are located at the level of their feet.

By way of another example, materials for transport and/or used assupplies in a manufacturing or construction project may be storedagainst walls and/or stacked in rows with walkway space allocatedtherebetween under conditions that prevent typical overhead lightingsolutions from being effective. It may be that stacks and/or shelvesfull of such materials may be so high as to create a kind of “canyoneffect” in which sufficient overhead lighting is simply not able topenetrate far enough down between such stacks and/or shelves as toeffectively light walkways so as to allow personnel to see trip hazards.Also, such poor lighting located down within such “canyons” may preventpersonnel from recognizing hazards arising from objects extendingoutwardly toward them from stacks and/or shelves of such materials.

By way of still another example, where various utility services and/ormachinery are in the process of being repaired, there is often a need toturn off electric power such that personnel are forced to resort to theuse of flashlights, headlamps and/or other portable lighting devicesthat may need to be positioned at awkward locations. In such situations,personnel are often forced to contend with the use of portable pointlight sources that can create shadows that hide objects that need to beseen, that must be physically supported in a cumbersome manner using ahand or other body portion, and/or that may need to be positioned on awalking surface at a location that creates a trip hazard. Again, in aneffort to mitigate one hazard, another hazard may be created.

SUMMARY

The present invention addresses such needs and deficiencies as areexplained above by providing portable and resilient floor mats thatincorporate one or more up-lighting components to cause one or morestrips of illumination lighting to be emitted through portions of theupper surface of the floor mats at one or more locations. Such floormats may be positioned in an industrial or other environment wherepersonnel are engaged in work with material, manufactured goods and/ormachinery that is positioned or moving over their heads and/or at otherlocations in close proximity to walls or walkways.

Such environments may include assembly lines in which goods that arebeing manufactured are suspended over the heads of personnel to enablethe installation of components thereunder. Such environments may includerepair facilities at which machinery is routinely suspended over theheads of personnel to render underside portions thereof more accessibleto better enable repairs to be made. Such environments may includemachine rooms in which climate control, power distribution, waterfiltering, elevator machinery and/or other machinery may be positionedin a manner in which at least portions thereof may extend into oralongside walkways and/or may be suspended overhead. Such environmentsmay include material storage facilities and/or other forms of warehousestorage in which materials are stored on tall vertical shelving and/orin tall vertical stacks such that overhead lighting may be ineffectiveat reaching lower levels, including floor surfaces.

More specifically, a floor mat embodying the invention may be positionedon a support surface (e.g., a floor) adjacent to and/or underneath suchobjects or machinery to provide a cushioned surface on which personnelmay stand, walk or kneel, while also providing up-lighting from thefloor mat toward objects or machinery positioned alongside walls,walkways and/or overhead. The provision of such a cushioning floor matmay aid in mitigating physical fatigue, and/or avoiding stress-relatedand other injuries caused by prolonged periods of standing. Thecushioned surfaces of such mats may also aid in reducing the likelihoodof at least serious injury arising from an accidental fall by personnelleading to an impact with a hard floor surface.

The provision of such up-lighting within such a floor mat may increasesafety by obviating the need to position various lamps on a floor wherethey can become a trip hazard to personnel who may be too engaged intheir work with objects or machinery extending toward them at the levelof their torsos or heads, and/or positioned over their heads, to remainaware of the locations of such lamps and/or the power cords used toprovide electric power thereto. Up-lighting components may be positionedand/or oriented within the material of such a floor mat to concentrategreater illumination on particular overhead and/or other locations thatare of greater interest to personnel engaged in work on particularportions of objects or machinery.

Alternatively or additionally, up-lighting components may be positionedand/or oriented within the material of such a floor mat to provideguidance to personnel as to the locations of preferred walkways and/orhazardous areas. In so doing, color coding and/or various flashingpatterns may be incorporated into such up-lighting components.

BRIEF DESCRIPTION OF THE DRAWINGS

A fuller understanding of what is disclosed in the present applicationmay be had by referring to the description and claims that follow, takenin conjunction with the accompanying drawings, wherein:

FIG. 1A is a perspective view of an example embodiment of an up-lightingfloor mat.

FIG. 1B is an exploded perspective view of the up-lighting floor mat ofFIG. 1A showing details of an up-lighting assembly thereof and a slotformed in floor matting thereof to receive the up-lighting assembly.

FIG. 1C is an exploded perspective view of the floor matting of theup-lighting floor mat of FIG. 1A showing details of the formation of thefloor matting.

FIG. 1D is an exploded perspective view of a mat portion of the floormatting of FIG. 1C showing details of trimming of the mat portion aspart of assembling the floor matting of FIG. 1C.

FIG. 2A is a cross-sectional view of an embodiment of a portion of thefloor matting of the up-lighting floor mat of FIGS. 1A-D showing detailsof the structure and of the assembly thereof.

FIG. 2B is a cross-sectional view of an alternate embodiment of aportion of the floor matting of the up-lighting floor mat of FIGS. 1A-Dshowing details of the structure and of the assembly thereof.

FIG. 2C is a perspective view of a portion of a top surface of a cornerof an embodiment of an up-lighting floor mat in which a end of anup-lighting assembly emerges through an edge of the up-lighting floormat.

FIG. 2D is a perspective view of a portion of a bottom surface of thecorner of the up-lighting floor mat of FIG. 2C.

FIG. 3A is an exploded perspective view of an embodiment of theup-lighting assembly of the up-lighting floor mat of FIGS. 1A-D showingdetails of the insertion and covering of a light-emitting device thereofwithin a U-channel thereof.

FIG. 3B is an exploded perspective view of an alternate embodiment ofthe up-lighting assembly of the up-lighting floor mat of FIGS. 1A-Dshowing details of the insertion and covering of a strip of resilientmaterial along with a light-emitting device thereof within a U-channelthereof.

FIG. 3C is a cross-sectional view of a portion of the up-lighting floormat of FIGS. 1A-D showing details of an embodiment of the assembly ofthe up-lighting assembly in place within the slot formed in the floormatting thereof.

FIG. 3D is a cross-sectional view, similar to FIG. 3C, showing detailsof the up-lighting assembly as assembled.

FIG. 4A is an exploded perspective view of a subset of the components ofan embodiment of the up-lighting assembly of the up-lighting floor matof FIGS. 1A-D.

FIG. 4B is an exploded perspective view of a subset of the components ofan another embodiment of the up-lighting assembly of the up-lightingfloor mat of FIGS. 1A-D.

FIGS. 4C through 4F are each a cross-sectional view of a differentembodiment of the up-lighting device of the up-lighting floor mat ofFIGS. 1A-D that, taken together, show details of the manner in which adirectional light output of the light-emitting device of thereof may beaimed at different angles.

FIG. 5A is a cross-sectional view of a portion of the up-lighting floormat of FIGS. 1A-D showing details of the relative flexibility of aU-channel of an embodiment up-lighting assembly and of the floor mattingthereof.

FIG. 5B is a cross-sectional view of a portion of the up-lighting floormat of FIGS. 1A-D showing details of the relative flexibility of aU-channel of an alternate embodiment up-lighting assembly and of thefloor matting thereof.

FIG. 5C is a perspective view of another embodiment of up-lighting floormat showing details of being rolled up for transport and/or storagethereof.

FIG. 6A is an elevational view of an alternate embodiment of up-lightingfloor mat having multiple up-lighting assemblies arranged to form a pairof connected X-shapes, and showing details of four-way connection amongmultiple up-lighting assemblies in which a pair of light-emittingdevices cross.

FIG. 6B is an elevational view of an alternate embodiment of up-lightingfloor mat having multiple up-lighting assemblies arranged to form a pairof nested U-shapes, and showing details of various inline wiredconnections among multiple light-emitting devices to convey electricpower thereamong.

FIG. 6C is an elevational view of an alternate embodiment of up-lightingfloor mat having multiple up-lighting assemblies arranged adjacent andparallel to each other, and showing details of wired connections amongmultiple light-emitting devices to convey electric power thereamong.

FIG. 6D is a cross-sectional view of the multiple up-lighting assembliesof the embodiment of up-lighting floor mat of FIG. 6C showing details ofthe selective use of different strips of resilient material and/or ofdifferent diffusers to directionally emit light at multiple differentangles.

FIG. 6E is an elevational view of an alternate embodiment of up-lightingfloor mat having multiple up-lighting assemblies arranged in parallel toeach other, but not adjacent to each other, and showing details of wiredconnections among multiple light-emitting devices within each of theup-lighting assemblies to define portions thereof that emit lightinterspersed among portions that do not emit light to create a dashedline effect.

FIG. 6F is an elevational view of an alternate embodiment of up-lightingfloor mat having multiple up-lighting assemblies arranged in parallel toeach other and connected to an intersecting U-channel covered by adiffuser from which light is not emitted, and showing details of wiredconnections among multiple light-emitting devices within each of theup-lighting assemblies.

FIG. 6G is an elevational view from an edge of the up-lighting floor matof FIG. 6F showing details of the use of pairs of up-lighting assembliesthereof to directionally emit light in a triangulated manner to improvevisibility of a portion of a surface of an object.

FIG. 7A is a perspective view of an example embodiment of ahand-carryable and rechargeable up-lighting floor mat.

FIG. 7B is an exploded perspective view of the portable up-lightingfloor mat of FIG. 7A showing details of the assembly thereof.

DETAILED DESCRIPTION

FIGS. 1A through 1D, taken together, depict various aspects of anup-lighting floor mat 1000, which may include floor matting 100, atleast one up-lighting assembly 200 and/or at least one power source 300to provide electric power for the at least one up-lighting assembly 200.

As best appreciated by viewing FIG. 1A, the up-lighting floor mat 1000may have a generally planar shape with outer edge portions 103. Whenplaced flat atop a floor or other support surface, the generally planershape of the up-lighting floor mat 1000 may define an upwardly-facingsurface 101 to support personnel standing and/or walking thereon, and aopposed downwardly-facing surface 102 by which the up-lighting floor mat1000 may, itself, be supported by a floor or other support surface. Asdepicted, at least a subset of the edge portions 103 may be shaped toform one or more ramps by which trip hazards to personnel may beminimized and/or by which carts and/or other rolling objects may be moreeasily rolled onto and/or off of the up-lighting floor mat 1000.

The floor matting 100 may be formed from any of a variety of flexiblematerials, including various forms of flexible plastic and/orrubber-based materials, including and not limited to, open cellpolyurethane foam. The floor matting 100 may be so formed using any of avariety of manufacturing technologies, including and not limited to,various forms of molding, extrusion, and/or additive manufacturing(e.g., 3D printing) technologies.

As can best be seen in FIGS. 1C-D, in some embodiments, the floormatting 100 of the up-lighting floor mat 1000 may be assembled frommultiple mat portions 110, such as the specifically depicted matportions 110 a through 110 d. In embodiments in which each of the matportions 110 a-d were originally separately formed as complete mats,each of the mat portions 110 a-d may originally have been formed withedges that provide ramps about the entirety of each of theirperipheries. Alternatively, in embodiments in which each of the matportions 110 a-d is formed as at least a portion of a roll of matmaterial, only an opposed pair of the edges of each of the mat portions110 a-d may provide ramps.

Regardless of the exact manner in which each of the multiple matportions 110 a-d may have been formed, as part of assembling anembodiment of the up-lighting floor mat 1000 from the multiple matportions 110 a-d, portions of such ramps may be trimmed off of one ormore of the multiple mat portions 110 a-d, thereby becoming cuttings130. Following such trimming, at least a subset of the resulting cutedges 104 of each of the mat portions 110 a-d may then be glued together(or otherwise bonded or affixed together) in any of a variety of ways toform the floor matting 100 of the up-lighting floor mat 1000. To enablesuch gluing together (or other form of adhering or bonding together) ofthe cut edges 104, at least a subset of the cut edges 104 may be“straight-cut” (e.g., cut in a manner that defines a flat cut edgesurface that is oriented perpendicularly to the surfaces 101 and 102).

In such embodiments, the need to assemble the up-lighting floor mat 1000from the multiple mat portions 110 a-d may be used as an opportunity toutilize at least a subset of the cut edges 104 to provide edges 105and/or define ends 106 of a slot 109 (best seen in FIG. 1B) within whichan up-lighting assembly 200 may be positioned. In other embodiments inwhich the floor matting 100 is not assembled from multiple mat portions110 such that the up-lighting floor mat 1000 is formed from a singlepiece of floor matting 100, the slot 109 may be cut into such a singlepiece of floor matting 100. Thus, in such other embodiments, the edges105 and/or the ends 106 of a slot 109 may be created in a manner thatdoes not entail the creation of cut edges 104 from preparations tocombine multiple mat portions 110.

As depicted in FIG. 1B, the lighting assembly 200 may be elongate inshape with a generally rectangular cross-section that defines anupwardly-facing surface 201, a downwardly-facing surface 202, a pair ofopposed lengthwise edges 205, and a pair of opposed ends 206. As part ofassembling the lighting assembly 200 together with one or more matportions 110 to form the up-lighting floor mat 1000, the lengthwiseedges 205 may be glued to (or otherwise affixed to or bonded togetherwith) matting material 100 that provides corresponding edges 105, and/orthe ends 206 may be glued to (or otherwise affixed to or bonded togetherwith) matting material 100 that defines corresponding ends 106.

The lighting assembly 200 may have a shape and/or dimensions that enablethe lighting assembly 200 to be assembled together with the floormatting 100 such that the upwardly-facing surface 201 is able to bealigned in one plane with the upwardly-facing surface 101 simultaneouslywith the downwardly-facing surface 202 being aligned in another planewith the downwardly-facing surface 201. The edges 205 and/or the ends206 may define edge surfaces that may be oriented perpendicularly to thesurfaces 201 and 202 of the lighting assembly 200 in a manner similar tohow the edge surfaces defined by the cut edges 104 (which may provideedges 105 and/or ends 106) may be oriented perpendicularly to thesurfaces 101 and 102 of the floor matting 100. Again, this may be doneto enable gluing together (or another form of adhering or bondingtogether) of the edges 205 with the edges 105, and/or the ends 206 withthe ends 106.

Returning to FIG. 1A, a cable conveying electricity from the powersource 300 to the lighting assembly 200 may extend from the power source300 to one of the ends 206. The power source 300 may be any of a varietyof types of power source, including and not limited to, a battery or apower supply that receives AC mains power (e.g., a Class II 60 W or 120W power supply that receives AC from wall socket) and employs such ACmains power to generate electric power of appropriate characteristics(e.g., AC or DC, voltage and/or amperage, pulse-width modulation, etc.)appropriate for use with light-emitting components of the lightingassembly 200.

It should be noted that, although FIGS. 1A-D depict the up-lightingfloor mat 1000 as having a generally rectangular shape defined by itsouter edges 103, and as including only a single up-lighting assembly 200within a single slot 109 to provide a single strip of up-lighting, otherembodiments of the up-lighting floor mat 1000 are possible in which theouter edges 103 may define any of a variety of shapes and/or that mayincorporate multiple ones of the up-lighting assembly 200.

Turning to FIGS. 2A through 2D, the upwardly-facing surface 101 may be abi-level surface incorporating a combination of upwardly-extendingprojections 111 and upwardly-facing recesses 117 that are shaped and/orarranged in a pattern selected to reduce incidents of skidding on theupwardly-facing surface 101 by personnel standing and/or walkingthereon. Correspondingly, the downwardly-facing surface 201 may be abi-level surface incorporating a combination of downwardly-extendingprojections 112 and downwardly-facing recesses 118 that are shapedand/or arranged in a pattern selected to reduce incidents of skidding ofthe up-lighting floor mat 1000 on a floor or other support surface.

As depicted, at least a subset of the upwardly-extending projections 111may be positioned on the upwardly-facing surface 101 to overlie thepositions of at least a subset of the downwardly-facing recesses 118 onthe downwardly-facing surface 102, and/or at least a subset of theupwardly-opening recesses 117 may be positioned on the upwardly-facingsurface 101 to overlie the positions of at least a subset of thedownwardly-extending projections 112 on the downwardly-facing surface102. This may be done in accordance with what is described in U.S. Pat.No. 5,863,637 issued Jan. 26, 1999, to Mansson et al (hereinafterreferred to as “the Mansson patent”) to enhance the degree of cushioningprovided to personnel who stand and/or walk upon the up-lighting floormat 1000. As described in the Mansson patent, upwardly-extendingprojections that are so positioned are able to be more easily presseddownward when stepped upon as a result of the material of the mat thatis immediately underneath being able to move downward intodownwardly-facing recesses that such upwardly-extending projectionsoverlie. The disclosure of the Mansson patent is incorporated herein byreference in its entirety.

Regardless of whether there is such overlying positioning between any ofthe upwardly-extending projections 111 and any of the downwardly-facingrecesses 118, or between any of the upwardly-facing recesses 117 and anyof the downwardly-extending projections 112, the inclusion of one orboth of the upwardly-facing recesses 117 and the downwardly-facingrecesses 118 at regular intervals along at least one dimension of theup-lighting floor mat 1000 may create a series of thinner portions ofthe up-lighting floor mat 1000 that enable the up-lighting floor mat1000 to be more easily rolled up for transport and/or storage. In someembodiments, at least some of the upwardly-facing recesses 117 may bepositioned to overlie at least some of the downwardly-facing recesses118 at regular intervals to create a series of still thinner portions ofthe up-lighting floor mat 1000 to further aid the rolling up thereof.

Turning more specifically to FIGS. 2A-B, in different embodiments, aramp defined by an outer edge portion 103 of the floor matting 100 maybe formed integrally with at least a portion of the floor matting 100(as depicted in FIG. 2A). Alternatively, a ramp of an outer edge portion103 may be separately formed and subsequently adhered to (or otherwisebonded or affixed to) at least a portion of the floor matting 100 (asdepicted in FIG. 2B). By way of example, and as earlier discussed, sucha separately formed ramp may be part of a cutting 130 from a mat portion110 that was subsequently glued to (or otherwise adhered or affixed to)a cut edge 104 of a mat portion 110 to create such an outer edge portion103. As also depicted, regardless of the exact manner in which a ramp ofan outer edge portion 103 is formed, in different embodiments, such aramp may be defined to provide a longer and more gradual slope (asdepicted in FIG. 2B) or may be defined to provide a shorter and steeperslope (as depicted in FIG. 2A).

Turning more specifically to FIGS. 2C-D, it should be noted that,although FIGURES lA-D depict a slot 109 having been formed in a mannerin which both ends thereof are closed such that there are distinct ends106 formed to engage corresponding ends 206 of the depicted up-lightingassembly 200, other embodiments are possible in which a slot 109 mayopen through an outer edge 103 of the floor matting 100. Morespecifically, a slot 109 may be formed in a manner in which at least oneend thereof extends through an outer edge 103 such that an end 206 of anup-lighting assembly 200 may extend to, and become part of, an outeredge 103. This may be done in such embodiments to enable access to anend 206 of an up-lighting assembly 200 to accommodate cabling conveyingelectricity from the power source 300.

Turning to FIGS. 3A through 3D, the up-lighting assembly 200 may includean upwardly-opening U-channel 210, a downwardly-opening diffuser 220that may also have a U-channel cross-section, and an elongatelight-emitting device 230. It may be the U-channel 210 that provides thelengthwise edges 205 to which portions of the floor matting 100 thatdefine edges 105 of a slot 109 may be attached, and/or that provides theends 206 to which portions of the floor matting 100 that define ends 106of a slot 109 may be attached.

Turning more specifically to FIGS. 3A-B, as depicted, an up-lightingassembly 200 may be assembled prior to being assembled with the floormatting 100 of an up-lighting floor mat 1000. Alternatively, theU-channel 210 may be assembled with the floor matting 100 before theup-lighting assembly 200 is assembled such that the up-lighting assembly200 is assembled in place within the up-lighting floor mat 1000.Regardless of the exact order of assembly, the U-channel 210 and thediffuser 220 may be assembled with their U-channel cross-sections opentowards each other, thereby forming a generally rectangular tube-likestructure within which the light-emitting device 230 may be positioned.As will be explained in greater detail, the light-emitting device 230may emit light that may be highly directional in nature such that whenpositioned within the generally rectangular tube-like structure socreated, the light-emitting device 230 may be oriented therein to directthe majority of its emitted light through the diffuser 220. As will alsobe explained in greater detail, a portion of a cutting 130 may also bepositioned within the generally rectangular tube-like structure as awedge-shaped strip 240 of flexible material to aid in setting theorientation of the light-emitting device 230.

Turning more specifically to FIGS. 3C-D, the U-channel cross-section ofthe upwardly-opening U-channel 210 may be defined by a pair ofupwardly-extending portions 215 connected by a horizontally-extendingbottom portion 212 (i.e., the bottom portion 212 extends transverselybetween and perpendicularly to the pair of upwardly-extending portions215). The upwardly extending portions 215 may define the majority of (ifnot the entirety of) the elongate edges 205 of the up-lighting assembly200 to which portions of the floor matting 100 that define edges 105 ofa slot 109 may be attached. The horizontally-extending bottom portion212 may define the downwardly-facing surface 202 of the up-lightingassembly 200, as well as an opposed upwardly-facing surface 211 insidethe U-channel cross-section.

The U-channel cross-section of the downwardly-opening diffuser 220 maybe defined by a pair of downwardly-extending portions 225 connected by ahorizontally-extending top portion 221. Each of the downwardly-extendingportions 225 may carry an outwardly-extending projection 227 thatengages an inwardly-opening recess 217 defined by a corresponding one ofthe upwardly-extending portions 215 of the U-channel 210. Thehorizontally-extending top portion 221 may define the upwardly-facingsurface 201 of the up-lighting assembly 200, as well as an opposeddownwardly-facing surface 222 inside its U-channel cross-section. Thedownwardly-facing surface 222 may define ribbing 224 that extendslengthwise along the elongate length of the diffuser 220 in the form ofa set of parallel-extending V-shaped grooves that perform the diffusingfunction of the diffuser 220.

The light-emitting device 230 may be made up of any of a variety oftypes of light-emitting components based on any of a variety oflight-emitting technologies. As depicted, the light-emitting device 230may have a generally rectangular cross-section with at least a distinctdownwardly-facing mounting surface 232. However, as also depicted, thecross-section of the light-emitting device 230 may have a slightlycurved or bulbous upper surface 231 through which the light-emittingdevice 230 may emit light. The downwardly-facing mounting surface 232may carry a pressure-sensitive adhesive backing by which thedownwardly-facing mounting surface 232 may be directly adhered to theupwardly-facing surface 211 of the upwardly-opening U-channel 210. Withthe light-emitting device 230 so affixed to the upwardly-facing surface211, light emitted by the light-emitting device 230 through its slightlycurved or bulbous upper surface 231 may then encounter the ribbing 224of the diffuser, and thereby become more diffused as the light passesthrough the horizontally-extending top portion 221.

Turning to FIGS. 4A through 4F, the diffuser 220 may be formed from anyof a variety of transparent and/or translucent materials, includingvarious forms of rigid transparent plastic (e.g., polycarbonate plastic,acrylic, etc.) and/or ceramic materials. The diffuser 220 may be soformed using any of a variety of manufacturing technologies, includingand not limited to, various forms of molding, extrusion, and/or additivemanufacturing (e.g., 3D printing) technologies. Correspondingly, theupwardly-opening U-channel 210 may be formed from any of a variety offlexible materials, including various forms of flexible plastic (e.g.,vinyl plastic, thermoplastic polyurethane, thermoplastic elastomer,etc.) and/or rubber-based materials. The U-channel 210 may be so formedusing any of a variety of manufacturing technologies, including and notlimited to; various forms of molding, extrusion, and/or additivemanufacturing (e.g., 3D printing) technologies.

Turning more specifically to FIGS. 4A-B, as depicted, the light-emittingdevice 230 may include any of a variety of types of flexible LEDlighting strip familiar to those skilled in the art, and incorporating aflexible substrate 234 on which conductors and LEDs 233 are deposited.As also depicted, at least the LEDs 233 of such a flexible LED lightingstrip may be covered in a flexible transparent material that providesphysical protection of at least the LEDs against physical impacts andexposure to moisture. More specifically, a covering may be used that isselected to meet one or more national or international standards,including and not limited to, those of the InternationalElectrotechnical Commission (IEC), such as IEC standard 60529. Morespecifically, such a covering may be selected to comply with level IP67or IP68 of the IEC standard 60529 for protection against exposure todust and water.

In some embodiments, solid transparent material may be disposed atopand/or all around the depicted flexible LED lighting strip in sufficientquantity as to form the curved or bulbous upper surface 231, as depictedin FIG. 4A. Alternatively, the flexible LED strip may be covered in athinner layer (e.g., a coating) of flexible transparent material thatdoes not define such a curved or bulbous upper surface. In otherembodiments, the flexible LED lighting strip may be sheathed within aclose-fitting tube 235 of transparent flexible plastics material. Stillother physical packaging configurations for a flexible LED lightingstrip to form the light-emitting device 230 will be familiar to thoseskilled in the art and may be employed in keeping with the spirit andscope of what is disclosed herein.

Turning more specifically to FIGS. 4C-F, in some embodiments, despitewhatever protective covering features may be incorporated into thelight-emitting device 230, itself, the diffuser 220 and/or the U-channel210 may, separately or in cooperation with each other, serve to provideadditional physical protection to the light-emitting device 230. In someembodiments, the horizontally-extending portion 221 of thedownwardly-opening diffuser 220 may have a slight dome-shapedcross-section that gives the upwardly-facing surface 201 a slightupwardly-extending curve, as depicted in FIGS. 4C-E. Such a curved shapemay cooperate with the ribbing 224 defined by the downwardly-facingsurface 222 to further diffuse the light emitted from the curved orbulbous upper surface 231 of the light-emitting device 230. However, inaddition to or in lieu of serving to diffuse light, such a curved shapemay be employed to increase the strength of the horizontally-extendingportion 221 to better resist the downward forces exerted by personnelstepping on the upwardly-facing surface 201. More generally, thediffuser 220 may serve to protectively cover the upwardly-openingU-channel 210 to prevent the entrance of dust, debris and/or liquidstherein.

In some embodiments, the rigidity of the material from which thediffuser 220 is formed and the flexibility of the material from whichthe U-channel 210 is formed may be used in concert to provide protectionto the light-emitting device 230. By way of example, as depicted,portions of the horizontally-extending portion 221 of the diffuser 220may overlap upwardly-extending ends of the pair of upwardly-extendingportions 215 of upwardly-opening U-channel 210. The rigid material ofthe horizontally-extending portion 221 of the diffuser 220 may causedownward pressure applied by personnel stepping on thehorizontally-extending portion 221 of the diffuser to be transferred tothe pair of upwardly-extending portions 215 of the upwardly-openingU-channel 210. The flexible material of the upwardly-extending portions215 may permit the upwardly-extending portions 215 to crush to somedegree to absorb some of that downward pressure. Such absorption of suchdownward pressure may impart some degree of downward “give” to thehorizontally-extending portion 221 in response to being stepped on bypersonnel such that the horizontally-extending portion 221 is able toprovide protection to the light-emitting device 230, while alsoproviding some amount of cushioning to personnel standing and/or walkingupon the up-lighting floor mat 1000. In this way, the sensation ofstepping upon the horizontally-extending portion 221 may not be asdiscernibly different from stepping upon the floor matting 100, at leastto personnel wearing shoes.

As is familiar to those skilled in the art, LEDs tend to emit light witha highly directional quality (i.e., in a manner somewhat akin to aspotlight), as opposed to other types of lighting devices that tend toemit light more omnidirectionally (e.g., incandescent bulbs). Thus, asis depicted more clearly in FIGS. 4C-4F, the light emitted by thelighting device 230 may have a relatively directional quality such thatit may be emitted primarily in a single direction (i.e., along an axis)indicated by arrow 253. It should be noted that descriptions of lightbeing emitted “primarily” in a particular direction are meant to beinterpreted as meaning that a light emitting device (e.g., an LED of aflexible LED strip, or other form of light emitting device) isdirectional in its emission of light to the extent that it emits lightwith greatest intensity in the particular direction, and also with somedegree of spread from the particular direction. As is familiar to thoseskilled in the art, such a spread of light emitted by a light emittingdevice may have a cone-like spread in a manner akin to the lightemission of a spotlight where there is cone-like spread of light that iscentered about a central axis along which light is emitted with greatestintensity. Therefore, it should be noted that descriptions of emittinglight “primarily” in a particular direction should not be interpreted asindicating that no light is emitted in any other direction, as would bethe case with the collimated light of a laser. Where thedownwardly-facing mounting surface 232 of the light-emitting device 230is directly adhered to the upwardly-facing surface 211 of thehorizontally-extending portion 212 of the U-channel 210, the primarydirection of emission of light, as indicated by the arrow 253 in FIG.4B, may be vertically upward when the up-lighting floor mat 1000 isplaced atop a horizontal support surface (e.g., a horizontal floor).

However, it may be deemed desirable to use such directionality of thelight emitted by LEDs to advantage to address a need to emit suchdirectional light from the up-lighting floor mat 1000 at an angle thatis tilted away from vertical. By way of example, as is familiar to thoseskilled in the art, close inspection of finished surfaces, such aspainted metal surfaces, is sometimes best done with light directed at anangle to that surface other than perpendicular to that surface. Thus, insome embodiments, and as is depicted in FIGS. 4D-F, an elongate strip240 of resilient material with a wedge-shaped cross-section may beinterposed between the downwardly-facing mounting surface 232 of thelighting device 230 and the upwardly-facing surface 211 of thehorizontally-extending portion 212 of the U-channel 210. The shapeand/or dimensions of the wedge-shaped cross-section of the strip 240 maybe selected to cause a specific resulting angle of the direction ofemitted light indicated by the arrow 253 away from vertical that may berelatively slight (e.g., 15 or 30 degrees), as depicted in FIGS. 4D-E.

However, in other embodiments, the shape and/or dimensions of thewedge-shaped cross-section of the strip 240 of material may be selectedto impart a specific greater angle away from vertical, such as 45degrees, or even an angle that approaches and/or achieves 90 degreesaway from vertical such that the direction of the arrow 253 may extendparallel relative to the plane of at least a portion of theupwardly-facing surface 101 of the floor matting 100. It should be notedthat to achieve a greater angle away from vertical, such as one thatapproaches or reaches 90 degrees, may additionally require alterationsto the cross-section of the diffuser 220, such as a more pronouncedupwardly-extending curve of the horizontally-extending portion 221, asdepicted in FIG. 4F.

In some embodiments, the strip 240 of flexible material of wedge-shapedcross-section may be created from a cutting 130 generated as a result oftrimming one or more mat portions 110 (e.g., one or more of the matportions 110 a-d of FIGS. 1A-D), as previously discussed. Morespecifically, a portion of such a cutting 130 that includes an outeredge 103 that defines a ramp may be used where the angle of such a rampis appropriate to provide a desired angle away from vertical of thedirection of emitted light indicated by the arrow 253.

Turning to FIGS. 5A through 5C, The flexible material from which theupwardly-opening U-shaped channel 210 is formed, coupled with the factthat the horizontally-extending portion 212 of the U-shaped-channel 210may be considerably thinner than the floor matting 100, may aid inmaking the up-lighting floor mat 1000 considerably easier to roll upand/or easier to roll up into a tighter roll at the location of theU-shaped channel 210, as depicted in FIGS. 5A-B. Indeed, in someembodiments, the placement of multiple up-lighting assemblies 200 may beselected to, at least in part, provide regular spacing of multipleupwardly-opening U-channels 210 that may provide multiple locations atwhich the up-lighting floor mat 1000 may be able to be more tightlyrolled up for transport.

Regardless of the quantity of upwardly-opening U-channels 210 that maybe included, the outwardly-extending projections 227 carried by thedownwardly-extending portions 225 of the diffuser 220, and theinwardly-opening-recesses 217 defined by the upwardly-extending portions215 of the U-channel 210 (best seen in FIG. 3C), may be shaped and/orsized to enable relatively easy and/or tool-less insertion of thediffuser(s) 220 into the U-channel(s) 210 and relatively easy and/ortool-less removal of the diffuser(s) therefrom. More specifically, eachdiffuser 220 may be designed to be easily “snapped” into and out of aU-channel 210 to enable easy removal when the up-lighting floor mat 1000is to be rolled up, and easy re-installation when the up-lighting floormat 1000 is unrolled for use at a new location. This may be done toaccommodate the forming of the diffuser(s) 220 from a rigid materialthat would impede rolling up of the up-lighting floor mat 1000 if thediffuser(s) are not removed from the U-channel(s) 210. The removeddiffuser(s) 220 may then be transported in an elongate straight formalong with the rolled-up up-lighting floor mat 1000. By way of example,an up-lighting floor mat 1000 may be rolled up around the diffuser(s)220 that are removed therefrom such that the rolled-up up-lighting floormat 1000 may be transported and/or stored in a manner that may preventits diffuser(s) 220 from being misplaced.

As depicted in FIG. 5C, the orientation in which an up-lighting assembly200 is positioned within the floor matting 100 of an up-lighting floormat 1000 relative to the direction in which the up-lighting floor mat1000 is to be rolled up may determine whether the removal of itsdiffuser 220 is necessary. More specifically, FIG. 5C depicts theU-channel 210 and light-emitting device 230 portions of an up-lightingassembly 200 y as having been positioned within a slot 109 y formed inthe floor matting 100 in an orientation in which the elongate shape ofthe up-lighting assembly 200 y extends in parallel with the direction inwhich the depicted up-lighting floor mat 1000 is to be rolled up, asindicated by arrows 153. As a result of this orientation, and due to thediffuser 220 (not shown) of the up-lighting assembly 200 y being formedfrom rigid plastics material, as discussed above, the diffuser 220 ofthe up-lighting assembly 200 y may need to be removed to allow suchrolling up of the depicted up-lighting floor mat 1000 to occur. Due tothe earlier-discussed flexibility of both the U-channel 210 and thelight emitting device 230, neither of these components of theup-lighting assembly 200 y that remain in place (following the removalof the diffuser 220) may provide any impediment to such rolling up ofthe depicted up-lighting floor mat 1000.

FIG. 5C also depicts the U-channel 210 and light-emitting device 230portions of another up-lighting assembly 200 x as having been positionedwithin a slot 109 x formed in the floor matting 100 in an orientation inwhich the elongate shape of the up-lighting assembly 200 x extendscross-wise to the direction in which the depicted up-lighting floor mat1000 is to be rolled up, again, as indicated by arrows 153. As a resultof this orientation, there may be no need to remove the diffuser 220 ofthe up-lighting assembly 200 x to allow such rolling up of the depictedup-lighting floor mat 1000 to occur. However, as discussed above inregard to FIGS. 5A-B, such removal of the diffuser 220 of theup-lighting assembly 200 x may enable advantage to be taken of thethinner flexible material of the U-channel 210 of the up-lightingassembly 200 x to allow the depicted up-lighting floor mat 1000 to bemore tightly rolled up.

FIGS. 6A through 6G depict numerous differing example embodiments ofup-lighting floor mat 1000 in multiple up-lighting assemblies 200 arepositioned in a wide variety of orientations. As can be appreciated fromthese figures, combinations of up-lighting assemblies 200 may bearranged to provide illuminated guides specifying boundaries ofpathways, zones of danger, and/or various geometric shapes that mayconvey useful information (e.g., arrows pointing indicating a preferreddirection of travel along a walkway).

As exemplified by FIGS. 6A-G, numerous alternate embodiments of theup-lighting floor mat 1000 are possible that have multiple ones of theup-lighting assemblies 200 in various arrangements providing multipleparallel strips of up-lighting, criss-crossing strips of up-lighting(e.g., one or more “X” patterns), multiple strips of up-lighting thatgenerally follow at least a subset of the outer edges 103, etc. Stillother patterns and/or combinations of strips of up-lighting may occur tothose skilled in the art, and would be within the spirit and scope ofwhat is disclosed herein.

FIG. 6A depicts an embodiment of up-lighting floor mat 1000 in whichmultiple up-lighting assemblies 200 are arranged at various locationswithin the floor matting 100 to form a pair of connected “X” shapes. Asalso depicted in an inset, the center of one of the “X” shapes may becreated as a pair of butt joints at which the ends 206 of twoup-lighting assemblies 200 a and 200 c are brought up against opposededges 205 of a third up-lighting assembly 200 b. Openings may be formedthrough the upwardly-extending portions 215 of the U-channel 210 of theup-lighting assembly 200 b at the locations of the pair of butt jointsto allow a light-emitting device 230 a to extend uninterrupted from anend 206 of the up-lighting assembly 200 a, through the up-lightingassembly 200 b in a crosswise manner, and into an end of the up-lightingassembly 200 c. Additionally, the light-emitting device 230 b of theup-lighting assembly 200 b may be positioned to cross over thelight-emitting device 230 a (as depicted), or alternatively, to crossthereunder. In this way, the entirety of the center of the “X” shape maybe caused to emit light.

FIG. 6B depicts an embodiment of up-lighting floor mat 1000 in whichmultiple up-lighting assemblies 200 are arranged at various locationswithin the floor matting 100 to form a pair of nested “U” shapes. Asalso depicted in a pair of insets, where two of the up-lightingassemblies 200 meet, either at a straight-through inline joint or at a90 degree miter-cut joint, electrical wires 236 may be employed toconvey electric power between ends of light-emitting devices 230.

FIG. 6C depicts an embodiment of up-lighting floor mat 1000 in which atriplet of up-lighting assemblies 200 a, 200 b and 200 c are arrangedadjacent to each other and in parallel within the floor matting 100. Asalso depicted in an inset, to form the triplet up-lighting assemblies200 a-c, adjacent pairs of the edges 205 provided by theupwardly-extending portions 215 of the U-channels 210 of the up-lightingassemblies 200 a and 200 b, and of the up-lighting assemblies 200 b and200 c may be directly glued together (or otherwise bonded together oraffixed to each other). As a result, opposed edges 205 of theup-lighting assemblies 200 a and 200 c may be glued to (or otherwisebonded to or affixed to) corresponding edges 105 of the floor mating100. Openings may be formed through adjacent pairs of theupwardly-extending portions 215 of the U-channels 210 of the up-lightingassemblies 200 a and 200 b, and of the U-channels 210 of the up-lightingassemblies 200 b and 200 c, to enable electrical wires 236 to conveyelectrical power among the light-emitting devices 230 within theU-channels 210 of all three of the up-lighting assemblies 200 a-c.

FIG. 6D provides a cross-sectional view of an embodiment of the tripletof up-lighting assemblies 200 a-c of FIG. 6C. As depicted,light-emitting devices 230 positioned in the U-channels 210 of each ofthe up-lighting assemblies 200 a-c may be positioned to achievedifferent angles from vertical along which light may be primarilyemitted by the light-emitting devices 230. More specifically, thelight-emitting device 230 of the up-lighting assembly 200 c may bepositioned therein in an orientation that causes the emission of lightprimarily in a vertical direction indicated by arrow 253 c. However,strips 240 a and 240 b of flexible material having differingwedge-shaped cross-sections may be positioned within U-channels of theup-lighting assemblies 200 a and 200 b to cause their correspondinglight-emitting devices 230 to each emit light primarily in a differentdirection angled away from vertical, as indicated by arrows 253 a and253 b, respectively. Such a grouping of differing primary directions ofemission of light may be employed along an outer edge 103 of such anembodiment of up-lighting floor mat 1000 to provide lighting thatextends upwardly along the vertical surface of a tall wall to whichobjects may be affixed, or upwardly along the surfaces of a tall stackor shelf of objects.

FIG. 6E depicts an embodiment of up-lighting floor mat 1000 in whichmultiple up-lighting assemblies 200 are arranged in parallel lines(though not adjacent to each other as in FIGS. 6C-D) within the floormatting 100. As also depicted in an inset, to form alternatinglight-emitting regions 203 and dark regions 204 along the length of eachof up-lighting assemblies 200, light-emitting devices 230 may bepositioned within the U-channels 210 at the light-emitting regions 203,but not at the dark regions 204. Instead, electrical wires 236 may bepositioned within the U-channels 210 where at least a subset of the darkregions 204 are located to convey electric power among thelight-emitting devices 230.

Such an arrangement of up-lighting assemblies 200 with such alternatingbetween light-emitting regions 203 and dark regions 204 may be usedwhere it is deemed desirable to spread out the emission of light acrossmore of the top surface 101 of an up-lighting floor mat 1000, but whereit is also deemed desirable to limit the amount of light emitted suchthat the use of light-emitting devices 230 extending the full length ofeach of the up-light assemblies 200 would result in the output of toomuch light. Alternatively, the generation of the “dashed line” patternthat results from such alternating light-emitting regions 203 and darkregions 204 may be deemed useful where a lengthy run of up-lightingassemblies 200 is used to create a kind of visual divider marking basedon such dashed lines, such as a divider that may define adjacent lanesof traffic along the length of a walkway in a manner akin to roadmarkings.

FIG. 6F depicts an embodiment of up-lighting floor mat 1000 in whichmultiple up-lighting assemblies 200 a through 200 d that each define alight-emitting region 203 are arranged in parallel lines (at least someof which may be arranged in adjacent pairs of parallel lines) that areinterconnected by a perpendicularly-extending combination of U-channel210 and diffuser 220 that define a dark region 204. As also depicted inan inset, such a perpendicularly extending combination of U-channel 210and diffuser 220 may meet ends 206 of each of the parallel-extendingup-lighting assemblies 200 at a butt joint through which electricalwires 236 may extend to convey electrical power to the light-emittingdevices 230 within the parallel-extending up-lighting assemblies 200.

FIG. 6G provides an edge-on elevational view of the up-lighting floormat 1000 of FIG. 6F. As depicted, a non-adjacent pair of up-lightingassemblies 200 a and 200 b may be configured using strips 240 ofresilient material (as has been previously described) to causelight-emitting devices 230 thereof to emit light primarily in directionsindicated by arrows 253 a and 253 b, respectively, that are selected toeffect triangulation of such emitted light onto a portion of adownwardly facing surface 909 of an object 900 suspended over a floor999. Similarly, another non-adjacent pair of up-lighting assemblies 200c and 200 d may be similarly configured to cause light-emitting devices230 thereof to emit light primarily in directions indicated by arrows253 c and 253 d, respectively, that are selected to effect triangulationof such emitted light onto another portion of the downwardly facingsurface 909 of the object 900. As previously discussed, such angling oflight that shines onto a surface may advantageously illuminate a surfacein a manner that enables more effective inspection. Additionally, suchtriangulation of light from differing directions from multipleup-lighting assemblies 200 may be deemed useful in reducing shadows thatwould otherwise be caused through the use of light emitting primarilyonly from one direction.

FIGS. 7A and 7B, taken together, depict various aspects of ahand-carryable embodiment of up-lighting floor mat 1000, which mayinclude floor matting 100, a pair of up-lighting assemblies 200 a and200 b, and/or a power source 300 integrated therein. As best appreciatedby viewing FIG. 7A, the up-lighting floor mat 1000 may have a generallyrectangular shape with the pair of up-lighting assemblies 200 a-b andthe power source 300 adhered to (or otherwise bonded to or affixed to)the floor matting 100 along one edge thereof in a manner that defines anopening 1002 that enables the pair of up-lighting assemblies 200 to beused as a handle by which the up-lighting floor mat 1000 may be carriedwith one hand.

Turning more specifically to FIG. 7B, the floor matting 100 may beformed from a single rectangular floor mat that may be trimmed along oneedge thereof to form a set of cut edges 104. Among the set of cut edges104 may be an adjacent pair of the cut edges 104 that define a pair ofinset edges 108 that define an inset corner of the floor matting 100that is shaped and sized to receive the power source 300. In soreceiving the power source 300, portions of the casing of the powersource 300 may be glued to (or otherwise adhered or bonded to) each ofthe inset edges 108.

Another pair of the cut edges 104 may define a pair of edges 105 towhich portions of an edge of up-lighting assembly 200 b is to be glued(or otherwise adhered or bonded). The same edge 205 of the up-lightingassembly 200 b may also be directly glued (or otherwise adhered orbonded) to a portion of the casing of the power source 300 such that thepower source 300 is interposed between a portion of the up-lightingassembly 200 b and a portion of the floor matting 100. The opposing edge205 of the up-lighting assembly 200 b may be directly glued (orotherwise adhered or bonded) to an edge 205 of the up-lighting assembly200 a such that the pair up-lighting assemblies 200 a and 200 b arecaused to extend parallel to and adjacent to each other.

The pair of cut edges 104 that define the pair of edges 105 may flank acurving cut edge 104 that defines an unattached edge 107 (as depicted),or a subset of cut edges 104 that define a set of unattached edges 107,that may cooperate with the up-lighting assembly 200 b to define theopening 1002 through which at least the digits of a hand may extend towrap around and grasp the pair of up-lighting assemblies 200 a-b in amanner that results in the pair of up-lighting assemblies 200 a-b beingused as a carry handle. Although the U-channels 210 of the pair ofup-lighting assemblies 200 a-b may be made of flexible material, therigid material of the diffusers 220 of the pair of up-lightingassemblies 200 a-b may be used to impart rigidity to the structure ofthe handle that is provided by the pair of up-lighting assemblies 200a-b. Indeed, in some embodiments, the diffusers 220 may be permanentlyaffixed to corresponding U-channels 210 of the pair of up-lightingassemblies 200 a-b. As a result, a person who carries this embodiment ofthe up-lighting floor mat 1000 by using the pair of up-lightingassemblies 200 a-b in this way need not contend with the corners nearthe ends 206 flexing in such a manner that may make carrying thisembodiment of the up-lighting floor mat 1000 more difficult.

As further depicted, the power source 300 may be connectable to the pairof up-lighting assemblies 200 a-b via electric cables that may includeelectrical connectors 237. Through use of the electrical connectors 237,the power source 300 may be electrically connected to the pair ofup-lighting assemblies 200 a-b to convey electric power thereto from thepower source 300. Alternatively, through use of the electricalconnectors 237, the power source may alternatively or additionally beconnected to an external source of electric power by which the powersource 300 may be recharged in embodiments in which the power source 300is a rechargeable battery or other form of electric power storagedevice.

Although the invention has been described in a preferred form with acertain degree of particularity, it is understood that the presentdisclosure of the preferred form has been made only by way of example,and that numerous changes in the details of construction and the mannerof manufacture may be resorted to without departing from the spirit andscope of the invention. It is intended to protect whatever features ofpatentable novelty exist in the invention disclosed.

The invention claimed is:
 1. An up-lighting floor mat comprising: floormatting that defines an upwardly-facing surface and an opposeddownwardly-facing surface when supported atop an upwardly-facing supportsurface, and that is formed from a first flexible material that enablesthe up-lighting floor mat to be rolled up for transport or storage; anda first elongate up-lighting assembly positioned within a first elongateslot defined through the floor matting to emit light upwardly from thefirst elongate slot, wherein the first elongate up-lighting assemblycomprises: a first U-channel of elongate shape and upwardly-openingcross-section defined by a pair of upwardly-extending portions connectedby a horizontally-extending bottom portion, wherein: at least one of theupwardly-extending portions of the first U-channel is bonded to at leastone edge of the floor matting that defines the first elongate slot; thehorizontally-extending bottom portion of the first U-channel defines aportion of the downwardly-facing surface; and the first U-channel isformed from a second flexible material that cooperates with the firstflexible material of the floor matting to enable the up-lighting floormat to be rolled up; a first LED strip positioned within the firstU-channel, wherein the first LED strip is sufficiently flexible as tonot impede the rolling up of the up-lighting floor mat; and a firstdiffuser of elongate shape and downwardly-opening U-shaped cross-sectiondefined by a pair of downwardly-extending portions connected by ahorizontally-extending top portion, wherein: the first diffuser isinstallable over the upwardly-facing opening of the first U-channel,with the downwardly-facing opening of the first diffuser opening intothe first U-channel, and with each of the downwardly-extending portionsof the first diffuser extending alongside and adjacent to acorresponding one of the upwardly-extending portions of the firstU-channel to form a tube around the first LED strip; the first diffuseris removable from installation over the upwardly-facing opening of thefirst U-channel to avoid impeding the rolling up of the up-lightingfloor mat; the first diffuser is formed from rigid transparent ortranslucent material to enable light emitted by LEDs of the first LEDstrip to pass therethrough; and each of a pair of outwardly-extendingportions of the horizontally-extending top portion of the first diffuserextend over an uppermost end of one of the upwardly-extending portionsof the first U-channel to transfer downward pressure exerted on thehorizontally-extending top portion of the first diffuser into the pairof upwardly-extending portions of the first U-channel and around thefirst LED strip to protect the first LED strip from the downwardpressure.
 2. The up-lighting floor mat of claim 1, wherein the first LEDstrip is attached to an upwardly facing surface of thehorizontally-extending bottom portion of the first U-channel.
 3. Theup-lighting floor mat of claim 1, further comprising: an electric powersource; and an electric cable to convey electric power from the powersource to the first elongate up-lighting assembly to enable the firstelongate up-lighting assembly to emit light upwardly from the firstelongate slot, wherein: an end of the first elongate slot opens throughan edge of the floor matting; an end of the first elongate up-lightingassembly extends to the open end of the first elongate slot; and theelectric cable extends from the power source and to the end of the firstelongate up-lighting assembly that extends to the open end of the firstelongate slot.
 4. The up-lighting floor mat of claim 3, wherein: thefloor matting is trimmed to form an inset corner defined by at least twoadjacent inset edges; and the power source is bonded to the floormatting at each of the at least two inset edges to integrate the powersource with the up-lighting floor mat such that the power source formspart of the upwardly-facing surface and part of the opposed downwardlyfacing surface.
 5. The up-lighting floor mat of claim 4, wherein: theinset corner is formed adjacent to the open end of the first elongateslot; and the power source is bonded to the first elongate up-lightingassembly at the end of the first elongate up-lighting assembly thatextends to the open end of the first elongate slot such that the powersource is interposed between a portion of the floor matting and thefirst elongate up-lighting assembly.
 6. The up-lighting floor mat ofclaim 1, further comprising a second elongate up-lighting assemblypositioned within a second elongate slot formed through the floormatting to emit light upwardly from the second elongate slot, whereinedges defined by the second elongate up-lighting assembly are bonded toedges of the floor matting that define the second elongate slot.
 7. Theup-lighting floor mat of claim 6, wherein a first end of the firstelongate up-lighting assembly is joined to a second end of the secondelongate up-lighting assembly either straight on or at an angle.
 8. Theup-lighting floor mat of claim 6, wherein an end of the first elongateup-lighting assembly is joined to the second elongate up-lightingassembly in a butt joint at a location along an elongate edge of thesecond elongate up-lighting assembly.
 9. The up-lighting floor mat ofclaim 1, further comprising a second elongate up-lighting assemblypositioned adjacent to the first elongate up-lighting assembly withinthe first elongate slot, wherein the second elongate up-lightingassembly comprises: a second U-channel of elongate shape andupwardly-opening cross-section defined by a pair of upwardly-extendingportions connected by a horizontally-extending bottom portion, wherein:one of the upwardly-extending portions of the second U-channel is bondedto at least one other edge of the floor matting that defines the firstelongate slot; another of the upwardly-extending portions of the secondU-channel is bonded to another of the upwardly-extending portions of thefirst U-channel; the horizontally-extending bottom portion of the secondU-channel defines a portion of the downwardly-facing surface; and thesecond U-channel is formed from the second flexible material thatcooperates with the first flexible material of the floor matting toenable the up-lighting floor mat to be rolled up; a second LED strippositioned within the second U-channel, wherein the second LED strip issufficiently flexible as to not impede the rolling up of the up-lightingfloor mat; and a second diffuser of elongate shape anddownwardly-opening U-shaped cross-section defined by a pair ofdownwardly-extending portions connected by a horizontally-extending topportion, wherein: the second diffuser is installable over theupwardly-facing opening of the second U-channel, with thedownwardly-facing opening of the second diffuser opening into the secondU-channel, and with each of the downwardly-extending portions of thesecond diffuser extending alongside and adjacent to one of theupwardly-extending portions of the second U-channel to form a tubearound the second LED strip; the second diffuser is removable frominstallation over the upwardly-facing opening of the second U-channel toavoid impeding the rolling up of the up-lighting floor mat; the seconddiffuser is formed from rigid transparent or translucent material toenable light emitted by LEDs of the second LED strip to passtherethrough; each of a pair of outwardly-extending portions of thehorizontally-extending top portion of the second diffuser extend over anuppermost end of one of the upwardly-extending portions of the secondU-channel to transfer downward pressure exerted on thehorizontally-extending top portion of the second diffuser into the pairof upwardly-extending portions of the second U-channel and around thesecond LED strip to protect the second LED strip from the downwardpressure; and one of the pair of outwardly-extending portions of thehorizontally-extending top portion of the second diffuser abuts one ofthe pair of outwardly-extending portions of the horizontally-extendingportion of the first diffuser.
 10. An up-lighting floor mat comprising:floor matting formed from multiple mat portions by trimming at least onemat portion of the multiple mat portions, wherein: the at least one matportion comprises a first flexible material that enables the up-lightingfloor mat to be rolled up for transport or storage; the floor mattingdefines an upwardly-facing surface and an opposed downwardly-facingsurface when supported atop an upwardly-facing support surface; and thefloor matting defines a first elongate slot through the floor matting toreceive a first elongate up-lighting assembly to emit light up from thefirst elongate slot; a first U-channel of elongate shape andupwardly-opening cross-section that defines an elongate edge of thefirst elongate up-lighting assembly, wherein: at least oneupwardly-extending portion of the first U-channel is bonded to at leastone edge of the floor matting that defines the first elongate slot; ahorizontally-extending bottom portion of the first U-channel defines aportion of the downwardly-facing surface; and the first U-channelcomprises a second flexible material that cooperates with the firstflexible material of the floor matting to enable the up-lighting floormat to be rolled up; at least one elongate cutting that is also formedby trimming the at least one mat portion, wherein: a surface of theelongate cutting is bonded to an upwardly facing surface of thehorizontally-extending bottom portion of the first U-channel; and theelongate cutting has a wedge-shaped cross-section; and a first flexibleLED strip that is sufficiently flexible as to not impede the rolling upof the up-lighting floor mat, wherein a mounting surface of the firstflexible LED strip is bonded to another surface of the elongate cuttingto orient the first flexible LED strip within the first U-channel tocause LEDs of the first flexible LED strip to emit light primarily in afirst direction that is angled away from vertical; and a first diffuserof elongate shape and downwardly-opening cross-section, wherein: thefirst diffuser is installable over the upwardly-facing opening of thefirst U-channel to form a portion of the first elongate up-lightingassembly, with the downwardly-facing opening of the first diffuseropening into the first U-channel; at least one downwardly-extendingportion of the first diffuser extends alongside and adjacent to the atleast one upwardly-extending portion of the first U-channel to form atleast a portion of a tube around the first flexible LED strip; the firstdiffuser comprises a rigid transparent or translucent material to enablelight emitted by the LEDs of the first flexible LED strip to passtherethrough; and at least one outwardly-extending portion of ahorizontally-extending top portion of the first diffuser extends over anuppermost end of the at least one upwardly-extending portion of thefirst U-channel to transfer downward pressure exerted on thehorizontally-extending top portion of the first diffuser into the atleast one upwardly-extending portion of the first U-channel and aroundthe first flexible LED strip to protect the first flexible LED stripfrom the downward pressure.
 11. The up-lighting floor mat of claim 10,wherein: the at least one mat portion comprises a first mat portion anda second mat portion; the at least one upwardly-extending portion of thefirst U-channel comprises a first upwardly-extending portion and asecond upwardly-extending portion; the first upwardly-extending portionand the second upwardly-extending portion are connected by thehorizontally-extending bottom portion of the first U-channel; the atleast one edge of the floor matting to which the at least oneupwardly-extending portion of the first U-channel is bonded comprises afirst edge and a second edge of the floor matting that defines the firstelongate slot; the first upwardly-extending portion of the firstU-channel is bonded to the first edge of the floor matting; the firstedge of the floor matting is formed by trimming the first mat portion toform the at least one elongate cutting; the second upwardly-extendingportion of the first U-channel is bonded to the second edge of the floormatting; and the second edge of the floor matting is formed by trimmingthe second mat portion.
 12. The up-lighting floor mat of claim 10,wherein: a second elongate slot through the floor matting to receive asecond elongate up-lighting assembly to emit light up from the secondelongate slot is formed by trimming at least one mat portion of themultiple mat portions; a second U-channel of elongate shape andupwardly-opening cross section defines an elongate edge of the secondelongate up-lighting assembly, wherein at least one upwardly-extendingportion of the second U-channel is bonded to at least one edge of thefloor matting that defines the second elongate slot; ahorizontally-extending bottom portion of the second U-channel defines aportion of the downwardly-facing surface; and the second U-channelcomprises the second flexible material; a second flexible LED strip thatis sufficiently flexible as to not impede the rolling up of theup-lighting floor mat is positioned within the second U-channel, whereinthe second flexible LED strip is electrically connected to the firstflexible LED strip to cause electric power to be conveyed from the firstflexible LED strip to the second flexible LED strip; and a seconddiffuser of elongate shape and downwardly-opening cross-section isinstallable over the upwardly-facing opening of the second U-channel toform a portion of the second elongate up-lighting assembly; wherein: thedownwardly-facing opening of the second diffuser opens into the secondU-channel; at least one downwardly-extending portion of the seconddiffuser extends alongside and adjacent to the at least oneupwardly-extending portion of the second U-channel to form at least aportion of a tube around the second flexible LED strip; the seconddiffuser comprises a rigid transparent or translucent material to enablelight emitted by the LEDs of the second flexible LED strip to passtherethrough; and at least one outwardly-extending portion of ahorizontally-extending top portion of the second diffuser extends overan uppermost end of the at least one upwardly-extending portion of thesecond U-channel to transfer downward pressure exerted on thehorizontally-extending top portion of the second diffuser into the atleast one upwardly-extending portion of the second U-channel and aroundthe second flexible LED strip to protect the second flexible LED stripfrom the downward pressure.
 13. The up-lighting floor mat of claim 10,wherein: a second U-channel of elongate shape and upwardly-openingcross-section defines an elongate edge of a second elongate up-lightingassembly, wherein at least one upwardly-extending portion of the secondU-channel is bonded to another edge of the floor matting that definesthe first elongate slot; a horizontally-extending bottom portion of thesecond U-channel defines a portion of the downwardly-facing surface; andthe second U-channel comprises the second flexible material; anotherupwardly-extending portion of the first U-channel is bonded to anotherupwardly-extending portion of the second U-channel; a second flexibleLED strip that is sufficiently flexible as to not impede the rolling upof the up-lighting floor mat is positioned within the second U-channel,wherein: the second flexible LED strip is electrically connected to thefirst flexible LED strip; and the second flexible LED strip is orientedwithin the second U-channel to cause LEDs of the second flexible LEDstrip to emit light primarily in a second direction different from andnot in parallel with the first direction; and a second diffuser ofelongate shape and downwardly-opening cross-section is installable overthe upwardly-facing opening of the second U-channel to form a portion ofthe second elongate up-lighting assembly; wherein: the downwardly-facingopening of the second diffuser opens into the second U-channel; at leastone downwardly-extending portion of the second diffuser extendsalongside and adjacent to the at least one upwardly-extending portion ofthe second U-channel to form at least a portion of a tube around thesecond flexible LED strip; the second diffuser comprises a rigidtransparent or translucent material to enable light emitted by the LEDsof the second flexible LED strip to pass therethrough; and at least oneoutwardly-extending portion of a horizontally-extending top portion ofthe second diffuser extends over an uppermost end of the at least oneupwardly-extending portion of the second U-channel to transfer downwardpressure exerted on the horizontally-extending top portion of the seconddiffuser into the at least one upwardly-extending portion of the secondU-channel and around the second flexible LED strip to protect the secondflexible LED strip from the downward pressure.